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液壓機械 部件,黑龍江液壓機械,中特工程：

現在買車(che)(che)越來越普遍了，但是(shi)買車(che)(che)的學問也很大(da)呢(ni)，買車(che)(che)之前要查好(hao)多信(xin)息(xi)，今天筆者分(fen)享一下(xia)前輪驅(qu)動和后輪驅(qu)動的區(qu)別：

前輪(lun)(lun)驅動(dong)(dong)FR：非常普遍，成本(ben)沒有后輪(lun)(lun)驅動(dong)(dong)的高(gao)，結(jie)構(gou)比(bi)較簡單，發(fa)動(dong)(dong)機和(he)驅動(dong)(dong)部件都在前部分(fen)，由前面拉著后面向前走，當(dang)速度過快(kuai)轉彎的時候容易發(fa)生轉向不足，而(er)且前輪(lun)(lun)驅動(dong)(dong)對前輪(lun)(lun)胎(tai)的損耗很大。

后(hou)輪驅(qu)動(dong)：結構比(bi)較(jiao)(jiao)復雜，成本比(bi)較(jiao)(jiao)高；車(che)的(de)重量也比(bi)較(jiao)(jiao)重，整個車(che)重的(de)分別比(bi)較(jiao)(jiao)均勻，但(dan)急(ji)速過彎(wan)道的(de)時(shi)候很(hen)容易發生漂(piao)移現象(xiang)，一般豪華車(che)都用后(hou)驅(qu)動(dong)。

ESC、TCS系統通(tong)過控制發動機(ji)動力輸出(chu)和(he)制動系統來保(bao)證平(ping)穩(wen)駕駛，以(yi)損失(shi)動力作為安全(quan)(quan)保(bao)證以(yi)防止超越物理極限；AWD控制并調整每個車輪(lun)的(de)扭矩輸出(chu)，在(zai)(zai)不(bu)干涉(she)發動機(ji)動力輸出(chu)的(de)情況下提(ti)高了(le)物理極限，保(bao)證你全(quan)(quan)天(tian)候的(de)駕駛樂趣。車輛的(de)驅(qu)(qu)動型式有FWD(Front-Wheel Drive）、RWD(Rear-Wheel Drive）、4WD(Four-Wheel Drive）和(he)AWD(All-Wheel Drive）。我們先來看看這幾種驅(qu)(qu)動型式。前(qian)輪(lun)驅(qu)(qu)動（FWD）：今天(tian)占轎(jiao)車產品的(de)70%的(de)經濟型及(ji)中級轎(jiao)車都采用了(le)前(qian)輪(lun)驅(qu)(qu)動。就像名字(zi)所暗(an)示的(de)，只有前(qian)輪(lun)傳(chuan)遞動力。安裝在(zai)(zai)前(qian)部的(de)發動機(ji)將(jiang)動力直接傳(chuan)輸到前(qian)輪(lun)，提(ti)高了(le)牽引效(xiao)率，60%～70%的(de)重(zhong)(zhong)量集(ji)中在(zai)(zai)轎(jiao)車前(qian)部，提(ti)供了(le)更(geng)好的(de)冰(bing)雪(xue)穩(wen)定性，但前(qian)輪(lun)要承受75%的(de)制動，而且(qie)在(zai)(zai)急加(jia)速時車身(shen)重(zhong)(zhong)心后移(yi)，就會(hui)造成加(jia)速延遲，在(zai)(zai)操控上也存(cun)在(zai)(zai)著轉向過度和(he)后輪(lun)打滑現象(xiang)。

四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)（4 Wheel Drive)主變速器(qi)通過一個輔(fu)助變速器(qi)將動(dong)(dong)(dong)(dong)(dong)力傳送到前輪(lun)(lun)和(he)后輪(lun)(lun). 輔(fu)助變速器(qi)通常(chang)有三檔選擇； 空檔，四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)，四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)低(di)檔。空檔時，四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)就變成了兩輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)。四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu) 動(dong)(dong)(dong)(dong)(dong)適合于(yu)惡(e)劣的路(lu)面駕駛(shi)，例如，雨雪天和(he)多(duo)沙石路(lu)面。四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)低(di)檔則(ze)適合高(gao)難度的越(yue)野駕駛(shi)。全(quan)(quan)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong) (All Wheel Drive)全(quan)(quan)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)是四(si)(si)(si)(si)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)的一種(zhong). 它自動(dong)(dong)(dong)(dong)(dong)將發動(dong)(dong)(dong)(dong)(dong) 機提供(gong)的 扭矩分送到前輪(lun)(lun)和(he)后輪(lun)(lun)，不需要手動(dong)(dong)(dong)(dong)(dong)去(qu)調整，也沒有低(di)檔選擇。全(quan)(quan)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong) 減低(di)了車輪(lun)(lun)打滑的程度，改善了駕駛(shi)者的控車能力。全(quan)(quan)輪(lun)(lun)驅(qu)(qu)(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)通常(chang)是一種(zhong) 正常(chang)路(lu)面駕駛(shi)系統，并(bing)不設計用于(yu)越(yue)野駕駛(shi)。